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| # RUN: llc -march=x86-64 -run-pass none -o - %s | FileCheck %s
# This test ensures that the MIR parser parses the machine instruction's
# debug location metadata correctly.
--- |
define i32 @test(i32 %x) #0 !dbg !4 {
entry:
%x.addr = alloca i32, align 4
store i32 %x, i32* %x.addr, align 4
call void @llvm.dbg.declare(metadata i32* %x.addr, metadata !12, metadata !DIExpression()), !dbg !13
%0 = load i32, i32* %x.addr, align 4, !dbg !14
ret i32 %0, !dbg !14
}
define i32 @test_typed_immediates(i32 %x) #0 {
entry:
%x.addr = alloca i32, align 4
store i32 %x, i32* %x.addr, align 4
call void @llvm.dbg.declare(metadata i32* %x.addr, metadata !12, metadata !DIExpression()), !dbg !13
%0 = load i32, i32* %x.addr, align 4, !dbg !14
ret i32 %0, !dbg !14
}
define i32 @test_mir_created(i32 %x) #0 !dbg !15 {
entry:
%x.addr = alloca i32, align 4
store i32 %x, i32* %x.addr, align 4
%0 = load i32, i32* %x.addr, align 4
%1 = load i32, i32* %x.addr, align 4
%2 = load i32, i32* %x.addr, align 4
%3 = load i32, i32* %x.addr, align 4
ret i32 %0, !dbg !16
}
declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
attributes #0 = { nounwind "no-frame-pointer-elim"="false" }
attributes #1 = { nounwind readnone }
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!9, !10}
!llvm.ident = !{!11}
!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.7.0", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !2, globals: !2, imports: !2)
!1 = !DIFile(filename: "test.ll", directory: "")
!2 = !{}
!4 = distinct !DISubprogram(name: "test", scope: !5, file: !5, line: 4, type: !6, isLocal: false, isDefinition: true, scopeLine: 4, flags: DIFlagPrototyped, isOptimized: false, unit: !0, retainedNodes: !2)
!5 = !DIFile(filename: "test.c", directory: "")
!6 = !DISubroutineType(types: !7)
!7 = !{!8, !8}
!8 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
!9 = !{i32 2, !"Dwarf Version", i32 4}
!10 = !{i32 2, !"Debug Info Version", i32 3}
!11 = !{!"clang version 3.7.0"}
!12 = !DILocalVariable(name: "x", arg: 1, scope: !4, file: !5, line: 4, type: !8)
!13 = !DILocation(line: 4, scope: !4)
!14 = !DILocation(line: 8, scope: !4)
!15 = distinct !DISubprogram(name: "test_mir_created", scope: !5, file: !5, line: 10, type: !6, isLocal: false, isDefinition: true, scopeLine: 10, flags: DIFlagPrototyped, isOptimized: false, unit: !0, retainedNodes: !2)
!16 = !DILocation(line: 20, scope: !15)
...
---
name: test
tracksRegLiveness: true
registers:
- { id: 0, class: gr32 }
frameInfo:
maxAlignment: 4
stack:
- { id: 0, name: x.addr, size: 4, alignment: 4 }
body: |
bb.0.entry:
liveins: $edi
; CHECK: DBG_VALUE $noreg, 0, !11, !DIExpression(), debug-location !12
; CHECK: DBG_VALUE $noreg, 0, !11, !DIExpression(), debug-location !12
; CHECK: $eax = COPY %0, debug-location !13
; CHECK: RETQ $eax, debug-location !13
%0 = COPY $edi
DBG_VALUE _, 0, !12, !DIExpression(), debug-location !13
; Test whether debug-use is still recognized for compatibility with old
; files.
DBG_VALUE debug-use _, 0, !12, !DIExpression(), debug-location !13
MOV32mr %stack.0.x.addr, 1, _, 0, _, %0
$eax = COPY %0, debug-location !14
RETQ $eax, debug-location !14
...
---
name: test_typed_immediates
tracksRegLiveness: true
registers:
- { id: 0, class: gr32 }
frameInfo:
maxAlignment: 4
stack:
- { id: 0, name: x.addr, size: 4, alignment: 4 }
body: |
bb.0.entry:
liveins: $edi
%0 = COPY $edi
; CHECK: DBG_VALUE $noreg, i32 0, !DIExpression(), !12
; CHECK-NEXT: DBG_VALUE $noreg, i64 -22, !DIExpression(), !12
; CHECK-NEXT: DBG_VALUE $noreg, i128 123492148938512984928424384934328985928, !DIExpression(), !12
DBG_VALUE _, i32 0, !DIExpression(), !13
DBG_VALUE _, i64 -22, !DIExpression(), !13
DBG_VALUE _, i128 123492148938512984928424384934328985928, !DIExpression(), !13
MOV32mr %stack.0.x.addr, 1, _, 0, _, %0
$eax = COPY %0
RETQ $eax
...
---
name: test_mir_created
tracksRegLiveness: true
registers:
- { id: 0, class: gr32 }
frameInfo:
maxAlignment: 4
stack:
- { id: 0, name: x.addr, size: 4, alignment: 4 }
body: |
bb.0.entry:
liveins: $edi
%0 = COPY $edi
; CHECK-LABEL: name: test_mir_created
; CHECK: MOV32mr %stack.0.x.addr, 1, $noreg, 0, $noreg, %0, debug-location !DILocation(line: 1, scope: !14)
; CHECK: MOV32mr %stack.0.x.addr, 1, $noreg, 0, $noreg, %0, debug-location !DILocation(line: 2, column: 2, scope: !14)
; CHECK: MOV32mr %stack.0.x.addr, 1, $noreg, 0, $noreg, %0, debug-location !DILocation(line: 3, column: 2, scope: !14, isImplicitCode: true)
; CHECK: MOV32mr %stack.0.x.addr, 1, $noreg, 0, $noreg, %0, debug-location !DILocation(line: 4, scope: !14, inlinedAt: !15)
; CHECK: MOV32mr %stack.0.x.addr, 1, $noreg, 0, $noreg, %0, debug-location !DILocation(line: 5, scope: !14, inlinedAt: !DILocation(line: 4, scope: !14))
MOV32mr %stack.0.x.addr, 1, _, 0, _, %0, debug-location !DILocation(line: 1, scope: !15)
MOV32mr %stack.0.x.addr, 1, _, 0, _, %0, debug-location !DILocation(line: 2, column: 2, scope: !15)
MOV32mr %stack.0.x.addr, 1, _, 0, _, %0, debug-location !DILocation(line: 3, column: 2, scope: !15, isImplicitCode: true)
MOV32mr %stack.0.x.addr, 1, _, 0, _, %0, debug-location !DILocation(line: 4, scope: !15, inlinedAt: !16)
MOV32mr %stack.0.x.addr, 1, _, 0, _, %0, debug-location !DILocation(line: 5, scope: !15, inlinedAt: !DILocation(line: 4, scope: !15))
$eax = COPY %0
RETQ $eax
...
|